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[Launchpad Bug Tracker <1603137@xxxxxxxxxxxxxxxxxx>]

This bug was fixed in the package binutils - 2.26.1-1ubuntu1~16.04.1

---------------
binutils (2.26.1-1ubuntu1~16.04.1) xenial; urgency=medium

  * debian/rules: 2.26.1 changed sonames for libbfd and libopcodes, but
    there were no changes to the public ABI.  Add compatibility symlinks and
    revert the shlibs change.  LP: #1603137.

 -- Steve Langasek <steve.langasek@xxxxxxxxxx>  Thu, 14 Jul 2016
19:30:17 +0000

** Changed in: binutils (Ubuntu Xenial)
       Status: Fix Committed => Fix Released

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https://bugs.launchpad.net/bugs/1603137

Title:
  libbfd changed name without transition

Status in binutils package in Ubuntu:
  Fix Released
Status in linux package in Ubuntu:
  Invalid
Status in binutils source package in Xenial:
  Fix Released
Status in linux source package in Xenial:
  Invalid

Bug description:
  [SRU Justification]
  the latest binutils update in xenial to 2.26.1-1ubuntu1~16.04 changed the name of the libbfd library from: libbfd-2.26-system.so to libbfd-2.26.1-system.so
  This apparently happened without transitioning all dependencies.
  For example it broke the perf tool from the linux-tools-common package as it is still linked against the old libbfd name.

  To reproduce run "perf" with linux >= 4.4.0-24.43 and binutils
  2.26.1-1ubuntu1~16.04 and you get an cannot open libbfd-2.26-system.so
  error.

  [Test case]
  1. Install eztrace on 16.04.
  2. Install binutils from xenial-updates.
  3. Run 'eztrace'.  Confirm that this fails with a library error.
  4. Install binutils from xenial-proposed.
  5. Run 'eztrace'.  Confirm that this gives usage output instead of failing with a library error.

  [Regression potential]
  Packages which depend on libbfd-2.26-system.so are currently broken with the binutils in xenial-updates.  No packages appear to have been built yet against the libbfd-2.26.1-system.so soname.  Therefore the regression potential is minimal.  The solution is intended to be compatible with both upstream sonames, so that any future packages which do rebuild against the 2.26.1 soname will have a versioned dependency on binutils (>= 2.26.1), binutils (<= 2.27).

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